Literaturrecherche

Literatur Mehner A (1971) Verhalten von Legehennen bei Intensivhaltung. Umschau Wiss Techn 71:275

Literatur Thaer R (1971) Agricultural engineering aspects of farm waste aeration systems. Landtechn Forsch 19(5-6):159-169

Literatur Metzdorf H-J (1971) Der Milchmarkt in der Bundesrepublik Deutschland. Kali Briefe 10(16.5):8 S.

Literatur Flaig W (1971) The importance of modern trends in humus research for agricultural production. In: Institut für Biochemie des Bodens (ed) Biochemistry of soil organic matter in relation to crop production. Braunschweig: FAL, pp 2-20

Literatur Flaig W (1971) Formation of humic substances through transformation of plant residues. In: Institut für Biochemie des Bodens (ed) Biochemistry of soil organic matter in relation to crop production. Braunschweig: FAL, pp 21-55

Literatur Flaig W (1971) Contribution of microorganisms to humic substances formation. In: Institut für Biochemie des Bodens (ed) Biochemistry of soil organic matter in relation to crop production. Braunschweig: FAL, pp 56-80

Literatur Flaig W (1971) The role of nitrogen in formation of humic substances. In: Institut für Biochemie des Bodens (ed) Biochemistry of soil organic matter in relation to crop production. Braunschweig: FAL, pp 81-99

Literatur Flaig W (1971) Investigations for the elucidation of the structure of the humic fractions. In: Institut für Biochemie des Bodens (ed) Biochemistry of soil organic matter in relation to crop production. Braunschweig: FAL, pp 100-125

Literatur Stephan BR, Herrmanns S (1971) Pinus attenuata Lemmon im Arboretum Tannenhöft bei Hamburg. Dt Baumschule 23:3-5

Literatur Stephan BR (1971) Zum Problem einer Resistenzzüchtung gegen die Kiefernschütte. Allg Forstzeitschr 26(39):791-792